code: def create_aclient_session(self):
      if litellm.aclient_session:
          _aclient_session = litellm.aclient_session
      else:
          _aclient_session = httpx.AsyncClient()
  
      return _aclient_session
  
file_path: litellm/litellm/llms/base.py
imports: import litellm
  import httpx
  from typing import Optional
label_desc: Use image node_id 2 for calling the BaseLLM obj's underlying member method code with example usage: obj.create_aclient_session() and returns: _aclient_session